2.0Operating Instructions

2.2Hose Connections (cont.)

1.Connect discharge hose to machine outlet. (Fig. 2.2-1)

2.If optional low pressure downstream, in-line chemical injector is to be used (i.e. a Simpson SC 242 or

252 Series chemical injector) connect the injector at this time (Fig. 2.2-2). For instructions on connections and use, see in-line chemical injector operating instructions

3.Connect gunvalve to discharge hose with quick coupler (Fig. 2.2-3). DO NOT INSTALL CLEANING NOZZLE AT THIS TIME. Quick coupler sleeves must be pushed into locked position to prevent acciden- tal uncoupling (Fig. 2.2-5).

4.Check inlet water filter for blockage then connect water supply hose to machine. Use a 3/4" I.D. or larger hose with standard 3/4" garden hose fittings. (Fig. 2.2-4)

Incoming water supply must deliver gallons per minute greater than machine capacity.

If questionable, check supply at machine. If supply is insufficient, do not operate from this outlet. For residental use, the outlet closest to the meter tap will usually deliver the highest gallons per minute output. DO NOT connect to shallow wells used for lawn sprinkling. Connect only to clean city water supply or deep domestic well.

2.3Before Starting Machine

DO NOT OPERATE GASOLINE AND DIESEL ENGINES IN ENCLOSED AREAS! OPERATE IN WELL VENTILATED AREAS ONLY!

FIGURE 2.3 - GUNVALVE, EXTENSION, & NOZZLE

1.Locate machine on a level plane.

2.Turn on water supply. There should be no nozzle in the extension at this point.

3.Pull gunvalve trigger, allowing air in system to escape.

4.When water flows in a full steady stream, release gunvalve trigger. (Fig. 2.3)

2.4Starting Gasoline / Diesel Engine Machines

1.Check position of fuel valve, and if closed, open valve. For more detailed information on starting the machine’s engine, see engine instruction manual.

2.Choke: Close choke on carburetor by moving lever in proper direction. If engine is warm or air tempera- ture is high, close choke valve half-way, or keep it open fully.

3.Machines with recoil start: Turn engine ON/OFF switch to the “ON” position. Pull the recoil starter grip lightly until resistance is felt, then pull briskly.

Machines without APR (Automatic Pressure Relief): If the engine fails to start after 1 or 2 pulls of the recoil, pressure will build-up in the system. To relieve the pressure squeeze the gunvalve trigger and allow water to flow freely. There should be NO nozzle or obstruction at the end of the extension.

4.After engine starts, open choke gradually.

5.Warm up engine for 3 minutes without load.

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Simpson PS4240H manual Before Starting Machine, Starting Gasoline / Diesel Engine Machines
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PS4240H specifications

The Simpson PS4240H is a powerful and versatile gas pressure washer designed for both residential and commercial cleaning tasks. Known for its durability and efficiency, it delivers outstanding cleaning performance, making it an ideal choice for various applications, from washing vehicles to cleaning driveways and decks.

At the heart of the PS4240H is a robust Honda GX200 engine, renowned for its reliability and performance. This 196cc engine generates impressive power, enabling the pressure washer to reach a maximum pressure of 4200 PSI. This powerful output allows users to tackle even the toughest grime and dirt, significantly reducing the time and effort required for cleaning.

One of the standout features of the PS4240H is its high flow rate, which reaches up to 4.0 GPM (gallons per minute). This combination of high pressure and flow rate allows for efficient cleaning, making it ideal for larger areas, such as commercial properties or extensive outdoor spaces. Additionally, the unit comes equipped with a professional-grade generator-style pump that is designed for long-lasting performance, ensuring reliability during demanding cleaning jobs.

The pressure washer features five quick-connect nozzle tips, which enable users to choose the appropriate spray pattern for different tasks. Ranging from 0 degrees to 40 degrees, these nozzles allow for versatile cleaning options, from concentrated streams for tough stains to wider sprays for rinsing large surfaces. This adaptability makes the PS4240H suitable for a broad spectrum of applications.

Durability is another hallmark of the Simpson PS4240H. Its frame is constructed with a heavy-duty steel design, ensuring that it can withstand the rigors of frequent use. The oversized pneumatic tires enhance mobility, making it easier to maneuver across various terrains. Furthermore, the pressure washer features an ergonomic spray gun with a safety lock, promoting ease of use and reducing the risk of accidental activation.

In addition to its impressive technical specifications, the Simpson PS4240H is designed with user convenience in mind. The compact design and built-in storage solutions for accessories such as nozzles and hoses enhance overall functionality.

With features that blend power, efficiency, and durability, the Simpson PS4240H is an excellent investment for both homeowners and professionals seeking a reliable and effective pressure washing solution. Its high-performance capabilities make it a standout choice in the competitive market of pressure washers.
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